fix spelling m4 macro placement for tabbing environment

Author: Vladimir Kotal

proc.tex

@@ -625,24 +625,24 @@
 the last item must be \texttt{NULL}
 \end{itemize}
 \begin{minipage}{\slidewidth}
-\vspace{-1ex}\texttt{\begin{tabbing}
 ifdef([[[NOSPELLCHECK]]], [[[
+\vspace{-1ex}\texttt{\begin{tabbing}
 int \funnm{execle}(\=const char *\emph{path}, const char *\emph{arg0},
 ... ,\\\> char *const \emph{envp}[]);
-]]])
 \end{tabbing}}
+]]])
 \end{minipage}
 \begin{itemize}
 \item like \funnm{execl} but instead of the global variable \emph{environ}, 
 the \emph{\texttt{envp}} argument is used
 \end{itemize}
 \begin{minipage}{\slidewidth}
-\vspace{-1ex}\texttt{\begin{tabbing}
 ifdef([[[NOSPELLCHECK]]], [[[
+\vspace{-1ex}\texttt{\begin{tabbing}
 int \funnm{execve}(\=const char *\emph{path}, char *const \emph{argv}[],\\
 \>char *const \emph{envp}[]);
-]]])
 \end{tabbing}}
+]]])
 \end{minipage}
 \begin{itemize}
 \item like \funnm{execv} but instead of \emph{\texttt{environ}},
@@ -1025,8 +1025,8 @@
 \begin{minipage}{\slidewidth}\vspace{-1\baselineskip}\texttt{\begin{tabbing}
 void *\funnm{mmap}(\=void *\emph{addr}, size\_t \emph{l{}en},
 int \emph{prot}, int \emph{flags},\\\> int \emph{fildes}, off\_t \emph{off});
-]]])
 \end{tabbing}}
+]]])
 \end{minipage}
 \begin{itemize}
 

signals.tex

@@ -368,8 +368,8 @@
 \begin{minipage}{\slidewidth}\vspace{-1\baselineskip}\texttt{\begin{tabbing}
 int \funnm{sigaction}(\=int \emph{sig},
 const struct sigaction *\emph{act},\\\> struct sigaction *\emph{oact});
-]]])
 \end{tabbing}}
+]]])
 \end{minipage}
 \begin{itemize}
 \item assigns an action \emph{\texttt{act}} for a signal \emph{\texttt{sig}},
@@ -505,13 +505,13 @@
 \begin{itemize}
 \item blocked signals are delivered to the process after getting unblocked again
 \end{itemize}
-\begin{minipage}{\slidewidth}\texttt{\begin{tabbing}
 ifdef([[[NOSPELLCHECK]]], [[[
+\begin{minipage}{\slidewidth}\texttt{\begin{tabbing}
 int \funnm{sigprocmask}(\=int \emph{how}, const sigset\_t *\emph{set},\\
 \>sigset\_t *\emph{oset});
-]]])
 \end{tabbing}}
 \end{minipage}
+]]])
 \begin{itemize}
 \item sets the blocked signal mask and returns the old one
 \item \emph{how} -- \texttt{SIG\_BLOCK} adds signals to block,

synchro.tex

@@ -575,13 +575,13 @@
 \begin{slide}
 \sltitle{POSIX API for semaphores}
 
-\begin{minipage}{\slidewidth}\vspace{-1\baselineskip}\texttt{\begin{tabbing}
 ifdef([[[NOSPELLCHECK]]], [[[
+\begin{minipage}{\slidewidth}\vspace{-1\baselineskip}\texttt{\begin{tabbing}
 sem\_t \funnm{sem\_open}(\=const *char \emph{name}, int \emph{oflag},
 \\\>mode\_t \emph{mode}, unsigned int \emph{value});
-]]])
 \end{tabbing}}
 \end{minipage}
+]]])
 \begin{itemize}
 \item creates or opens a new POSIX semaphore.  \emph{mode} is same as for
 \funnm{open}().  Use ``\texttt{/somename}'' for the \emph{name}.